Heat Test - 1

The temperature of an object is a property of the object that determines how hot or cold the body is. It depends on the amount of thermal energy absorbed by the object and also the nature of the object and its mass. Moreover, movement of molecules in an object increases the heat. More the movement, more will be the temperature.

The formula for converting between degree Celsius and degree Fahrenheit is:
°C = (°F - 32) x 5/9

To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations.
°C = (°C x 9/5) + 32
°C - (°C x 9/5) = 32

- 4/5 x °C = 32
°C = - 32 x 5/4
°C = - 40

°F = (°F x 9/5) + 32
°F - (°F x 9/5) = 32
- 4/5 x °F = 32

°F = - 32 x 5/4
°F = - 40

So, the temperature when both Celsius and Fahrenheit scales show the same reading is - 40 degrees.

Both the spheres will expand almost equally. This is because both the sphere are of the same material.

Radiation and convection are the processes when the energy is emitted as electromagnetic waves, especially high-energy particles which cause ionization.

A substance that has a larger surface area will evaporate faster, as there are more surface molecules per unit of volume that are potentially able to escape.